Economical plug‑and‑play Ethernet/Modbus TCP adapter for connecting Mitsubishi A‑series PLCs to Ethernet networks.
Product Overview
The BEICHEN BCNet‑A is a compact Ethernet communication processor that transforms a Mitsubishi A-series PLC into an Ethernet/Modbus TCP-enabled device. Featuring a DSUB‑9 serial port, 25-to-9 pin adapter cable, and a standard RJ45 Ethernet port, it installs directly onto the PLC’s communication interface. Designed for industrial control, it occupies minimal space and doesn’t require external power. The device enables data acquisition, remote monitoring, and integration into SCADA systems without firmware modifications, supporting efficient factory automation.
How to Use
- Attach the BCNet‑A module to the PLC’s 9-pin port using the provided adapter cable.
- Plug in your Ethernet cable into the RJ45 port.
- Configure the IP address via the web interface or BCDevice software.
- Set the communication protocol (Modbus TCP) and baud rate (automatically adapts).
- Connect to your SCADA or HMI system, test using Modbus TCP polling.
Tip: Ensure secure network settings and avoid exposing directly on public networks.
Frequently Asked Questions (FAQ)
Q1: What PLCs are supported?
A1: Mitsubishi A-series PLCs with a 9-pin serial communication port.
Q2: What protocols does it support?
A2: Ethernet/Modbus TCP.
Q3: Does it need external power?
A3: No, it draws power from the PLC’s communication port.
Q4: How is IP configured?
A4: Via built-in web server or BCDevice tool.
Q5: What network speeds are supported?
A5: Standard 10/100 Mbps Ethernet.
Q6: Does it auto-adapt baud rate?
A6: Yes, adaptive from 9.6 K to 6 Mbps.
Q7: Is it industrial-grade?
A7: Yes, designed for factory automation use.
Q8: Is it compatible with SCADA?
A8: Yes, supports Modbus TCP used by most SCADA/HMI.
Q9: How to mount it?
A9: Directly on the PLC serial port; no DIN rail needed.
Q10: What’s in the box?
A10: BCNet‑A module, 25- to 9‑pin adapter cable, user manual.
User Review Summary
No reviews from major platforms yet. The manufacturer is relatively new, so real-world feedback is limited. Anticipate typical pros such as easy installation and industrial robustness, with cons possibly related to early firmware or limited documentation.
Comparison with Competing Products
• BCNet‑A vs BCNet‑Q (Q‑Series PLC module): BCNet‑Q is tailored for Mitsubishi Q-series PLCs with circular connectors and similar Ethernet/Modbus capabilities.
• BCNet‑A vs BCNet‑СP (Omron PLC adapter): Similar function but different pinout and OEM compatibility.
Technical Specifications
• Model: BCNet‑A V2.0
• Ports: DSUB‑9, RJ45 Ethernet
• Protocols: Modbus TCP over 10/100 Mbps
• Baud rate range: 9.6 K–6 Mbps (adaptive)
• Power: Bus‑powered from PLC serial port
• Mounting: Direct plug-on, PLC-mounted
• IP config: Web UI or BCDevice tool
• Size & weight: compact plastic housing (~90×24×65 mm), light
• Industrial grade: CE‑certified, designed for factory environment
Brand or Manufacturer Info
BEICHEN Automation (Wuxi, China) specializes in PLC Ethernet solutions. Their BCNet series supports multiple PLC brands like Mitsubishi, Siemens, Omron, Rockwell. They focus on cost-effective, plug‑and‑play adapters for factory automation.
Purchase Recommendations
BeiChen: https://www.beichen.store/bcnet-a/